Web interface for garage door opener on a Pi.

You'll need to create some files:

/var/www/door.sh:

#!/bin/bash 
echo "1" > /sys/class/gpio/gpio17/value && sleep .5 && echo "0" > /sys/class/gpio/gpio17/value

/var/www/status.sh:

#!/bin/bash 
if [[ $(cat /sys/class/gpio/gpio24/value) -eq 0 && $(cat /sys/class/gpio/gpio23/value) -eq 1 ]] 
then 
    echo opened 
elif [[ $(cat /sys/class/gpio/gpio24/value) -eq 1 && $(cat /sys/class/gpio/gpio23/value) -eq 0 ]] 
then 
    echo closed 
else 
    echo error 
fi

/etc/rc.local (add these lines):

echo "17" > /sys/class/gpio/export 
echo "23" > /sys/class/gpio/export 
echo "24" > /sys/class/gpio/export 
echo "out" > /sys/class/gpio/gpio17/direction 
echo "in" > /sys/class/gpio/gpio24/direction 
echo "in" > /sys/class/gpio/gpio23/direction